Kit includes two hold-down clamps to suit 3/4" (19mm) round bench holes, four low-profile (13mm high) bench dogs that will not destroy your plane iron if they're accidentally hit. Also includes a 550 x 550mm non-slip mat. Maximum capacity of work under clamp is 150mm. Clamps are supplied with non-marking feet and rubber handles for more gripping pressure when tightening. An excellent addition to your workbench kit. Weight: 1.6kg.